BuildASign custom decals are digitally printed on durable vinyl material. Opaque decals adhere strongly to surfaces like a sticker and cannot be removed to reapply. Our clear decals adhere with medium adhesive and can be removed without leaving marks on your window. With our clear decals, we give you the option to adhere the design side to a window for an inside cling that can be viewed properly from the outside. For opaque and clear custom decals you will have the option to apply the decal to the outside of your window like a sticker, which may be better for tinted glass or surfaces that are hard to see-through. Design, proof, and buy your custom decal today! Enjoy free standard shipping on custom vinyl decals and clings.